AP Chemistry: Ch
Physics: 1-D Motion Supplemental (i.e., NOT for a grade) Problems(Answers are at the bottom.)1. A sports car traveling at 29.8 m/s northwest slows at a constant rate to a stop in 8.0 s. Find the displacement.2. A toy car has an initial velocity of +5.0 m/s (to the right) and experiences an acceleration of +2.0 m/s2. Find the speed after 6.0 s.3. A soccer ball moves horizontally with a velocity of +3.0 m/s. It then undergoes a constant negative acceleration so that, after 4.0 s, it is moving +1.5 m/s. Find the distance traveled.4. A pebble falls from an already-airborne hot-air balloon that is at a constant altitude. After 3.00 seconds, how fast is the pebble moving AND how far has it fallen?5. A rock is thrown straight upward with an initial velocity of +28 m/s. To what height does it rise?6. Assume that human reaction time is 0.20 s. If your lab partner holds a meter stick between your finger and thumb and releases it without warning, how far will the meter stick have fallen before you catch it?7. A rock is thrown downward from the top of a cliff with an initial speed of 12 m/s. If the rock hits the ground after 2.0 s, what is the height of the cliff?8. A ball is thrown straight upward with an initial velocity of 21.5 m/s. What is the ball’s displacement after 1.00 s?9. A coin is dropped from rest from the top of a tower. It hits the ground after 1.50 s. With what speed does the coin hit the ground?10. From a balcony, a rock is thrown straight upward with an initial velocity of +21.7 m/s. The balcony is 8.45 m above the ground. If the rock just misses the balcony on the way back down, with what speed will it hit the ground?Answers:1. 120 m NW6. 0.20 m2. +17.0 m/s (to the right)7. 44 m3. 9.0 m8. 16.6 m upward4. 29.4 m/s AND 44.1 m9. 14.7 m/s5. 40. m10. 25.2 m/s ................
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